Three air strikes reduce busy market in western Aleppo province - a so-called de-escalation zone - to rubble.

At least 43 civilians have been killed and dozens more wounded in three air strikes on a busy market in al-Atarib, a town in Syria's western Aleppo province.

The UK-based Syrian Observatory for Human Rights said it was not immediately clear whether Monday's strikes on al-Atarib, a town in a so-called de-escalation zone, had been carried out by Syrian warplanes or those of Russia.

Videos posted on social media purported to show massive destruction at the scene with rubble from damaged buildings covering the town's street and people’s faces drenched in blood.

The air strikes come less than two weeks after peace talks in Astana where Russia, Turkey and Iran announced plans to implement no fly zones over four so-called de-escalation zones.